Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Primary lateral sclerosis
Primary lateral sclerosis is a motor neuron disease primarily affecting the corticospinal tracts. It is characterized by spastic paraplegia with normal sensation. It typically has an insidious onset in middle age (50-60 years old) and progresses slowly. It manifests as progressive spastic paraplegia or quadriplegia, with subsequent involvement of the upper limbs and pharyngeal muscles.
View detailsVascular migraine
Vascular migraine is one of the common acute headaches, caused by paroxysmal vasomotor dysfunction and temporary changes in certain humoral substances (such as cerebrospinal fluid). It is generally unilateral, more common in women, and the pain usually lasts for several hours.
View detailsSubacute necrotizing myelitis
The spinal cord controls four types of fibers: somatic motor, somatic sensory, visceral motor, and visceral sensory fibers. It governs muscle contraction and glandular secretion, enabling the normal functioning of various organs and tissues in the human body. The spinal cord itself requires an adequate blood supply to function properly. Subacute necrotizing myelopathy occurs when vascular malformations or other factors disrupt the blood circulation to the spinal cord, leading to progressive spinal cord damage. It is more common in men over 50 years old and can manifest as paralysis, motor and sensory impairments, among other symptoms.
Pharyngeal constrictor paralysis
Pharyngeal constrictor paralysis is a condition characterized by paralysis of the pharyngeal constrictor muscles due to central or peripheral lesions. Key symptoms include dysphagia, choking on water, and inability to eat normally.
View detailsOphthalmoplegia
Ophthalmoplegia is caused by damage to the oculomotor nerves and the extraocular muscles they innervate due to various reasons. The main clinical manifestations include ptosis, impaired eye movement, pupillary changes, strabismus, diplopia, decreased vision, and orbital pain.
View detailsOcular ischemic syndrome
Ocular ischemic syndrome is a series of cerebral and ocular symptoms caused by insufficient blood supply to the brain and eyes due to carotid artery occlusion or stenosis. It commonly affects men over 50 years old and can manifest as transient monocular blindness (i.e., temporary vision loss), decreased vision, and eye pain.
View detailsCongenital myotonia
Congenital myotonia is a hereditary skeletal muscle ion channelopathy caused by genetic mutations, commonly characterized by muscle stiffness and hypertrophy in the limbs. Clinically, it presents as the inability of striated muscles to relax promptly after voluntary contraction, remaining in a state of sustained contraction for a period. The disease can be divided into Thomsen's disease (autosomal dominant inheritance) and Becker's disease (autosomal recessive inheritance), which differ in their inheritance patterns and clinical features.
View detailsMitochondrial myopathy
Diseases caused by energy deficiency due to defective oxidative phosphorylation in cell mitochondria are called mitochondrial diseases. When skeletal muscle is affected, with or without central nervous system involvement, it is called mitochondrial myopathy. The clinical manifestations of this disease are diverse, mainly presenting as limb muscle weakness. More than half of cases are characterized by skeletal muscle fatigue intolerance, and it is mostly a hereditary disease.
View detailsPeroneal muscular atrophy in children
Charcot-Marie-Tooth disease (CMT) in children is the most common inherited disorder of the peripheral nervous system. It is characterized by a slow and progressive course, typically manifesting in childhood or adolescence. The disease presents with progressive muscle weakness and atrophy, which may be accompanied by mild to moderate sensory loss, diminished or absent deep tendon reflexes, and foot deformities such as pes cavus, foot drop, and hammer toes.
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